Users can earn a privilege comment everywhere when their reputation reaches 50. Yes, I can comment on any questions or answers already. You can blame me for trying to test this.
On one question, I used FireBug plugin and tried to change the question ID (at least, I assume so). For instance:
<div data-localized="true" class="comments dno" id="comments-xxxxxx"> <table> <tbody data-addlink-disabled="false" data-addlink-html="add comment" data-remaining-comments-count="0"> <tr><td></td><td></td></tr> </tbody> <tfoot> <tr> <td></td> <td class="comment-form"> <form data-placeholdertext="blah blah.." class="" id="add-comment-xxxxx"></form> </td> </tr> </tfoot> </table> </div>
xxxx must be changed to the same ID (the ID of a real answer or question). After I changed these to another post ID, I added comments. And indeed, this comment will be posted to that answer or question for which I inserted the ID. To see the comments, I opened the other question page with:
I am assuming that Stack Exchange doesn't validate comments on the server side.
I am correct? I am concerned about someone stupid using programattical means (for example, using HTML UNIT). Won't that lead to problems for Stack Exchange? Any explanation?